Join Peter and his sisters, as they get their Halloween costumes ready to go trick-or-treating, in this brand new story! Peter cannot wait to wear his radish costume and show all his friends when they go on their Halloween trail. But first, Peter must help his sisters decide what they will dress as - there's so many choices! However Peter soon worries that he's running out of time to get his own costume ready... Will he be able to join his sisters in all the Halloween fun and wear the best costume?